# Distance between Rock Springs, WY (RKS) and St Louis, MO (STL)

Flight distance from Rock Springs to St Louis (Southwest Wyoming Regional Airport – St. Louis Lambert International Airport) is 1007 miles / 1620 kilometers / 875 nautical miles. Estimated flight time is 2 hours 24 minutes.

Driving distance from Rock Springs (RKS) to St Louis (STL) is 1122 miles / 1806 kilometers and travel time by car is about 18 hours 27 minutes.

## Map of flight path and driving directions from Rock Springs to St Louis.

Shortest flight path between Southwest Wyoming Regional Airport (RKS) and St. Louis Lambert International Airport (STL).

## How far is St Louis from Rock Springs?

There are several ways to calculate distances between Rock Springs and St Louis. Here are two common methods:

Vincenty's formula (applied above)
• 1006.668 miles
• 1620.075 kilometers
• 874.771 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 1004.293 miles
• 1616.252 kilometers
• 872.706 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

## Airport information

A Southwest Wyoming Regional Airport
City: Rock Springs, WY
Country: United States
IATA Code: RKS
ICAO Code: KRKS
Coordinates: 41°35′39″N, 109°3′54″W

B St. Louis Lambert International Airport
City: St Louis, MO
Country: United States
IATA Code: STL
ICAO Code: KSTL
Coordinates: 38°44′55″N, 90°22′12″W

## Time difference and current local times

The time difference between Rock Springs and St Louis is 1 hour. St Louis is 1 hour ahead of Rock Springs.

MDT

CDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 151 kg (333 pounds).

## Frequent Flyer Miles Calculator

Rock Springs (RKS) → St Louis (STL).

Distance:
1007
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
1007

Round trip?